158794720812000 has 5760 divisors, whose sum is σ = 774133418298240. Its totient is φ = 31545129369600.

The previous prime is 158794720811983. The next prime is 158794720812047. The reversal of 158794720812000 is 218027497851.

158794720812000 is a `hidden beast` number, since 1 + 5 + 8 + 79 + 472 + 0 + 81 + 20 + 0 + 0 = 666.

It is a super-2 number, since 2×158794720812000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 959 ways as a sum of consecutive naturals, for example, 257365835692 + ... + 257365836308.

It is an arithmetic number, because the mean of its divisors is an integer number (134398162899).

Almost surely, 2^{158794720812000} is an apocalyptic number.

158794720812000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158794720812000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387066709149120).

158794720812000 is an abundant number, since it is smaller than the sum of its proper divisors (615338697486240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158794720812000 is a wasteful number, since it uses less digits than its factorization.

158794720812000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 158794720812000 in words is "one hundred fifty-eight trillion, seven hundred ninety-four billion, seven hundred twenty million, eight hundred twelve thousand".